REVERE, Mass. — Voters in Revere have approved Mohegan Sun’s plan to build a resort casino on land owned by Suffolk Downs.

Tuesday’s vote was the second casino vote in the city in just over three months. Revere voters in November approved a proposal at Suffolk Downs, on the East Boston line, but East Boston rejected it. Mohegan Sun came back with a proposed $1.3 billion facility that would be built entirely in Revere.

Mohegan Sun will now be competing with Wynn Resorts for the sole eastern Massachusetts resort casino. The state’s 2011 expanded gambling law allows for three regional resort casinos in Massachusetts. Wynn Resorts has proposed a $1.6 billion casino along the Mystic River in Everett, only a few miles from the Revere site.